Because of influence of aperture of migration operator, the image of 3-d seismic datavolume in space is smeared after migration, which is unfavorable for detecting the faults.
但由于偏移算子的孔径影响，经偏移得到的三维地震数据体在空间上被模糊了，不利于进行断层检测。
2
The processing has been done on the basis of 3-D migrated datavolume with 48 well-connecting lines being selected.
本次处理工作是在三维偏移数据体的基础上，抽取48条连井线进行。
3
Sub-volume coherence is one of seismic coherence resulted from the coherence calculation of one sub-volume of any size with another sub-volume in 3-D seismic datavolume.